The alleles snBL4, snBL6 and snBL8 may be derived from a single premeiotic event. Appreciable somatic reversion of this allele is seen. The rate of somatic reversion is 2.15%. The movements of the P-elements in these somatic reversions occur early in development, and require a trans-acting maternal effect component (P\TMo). Somatic reversion occurs preferentially in attached-X stocks.
The alleles snBL4, snBL6 and snBL8 may be derived from a single premeiotic event. Appreciable somatic reversion of this allele is seen. The rate of somatic reversion is 2.15%. The movements of the P-elements in these somatic reversions occur early in development, and require a trans-acting maternal effect component (P\TMo). Somatic reversion occurs preferentially in attached-X stocks.